Home / 11,291.19-15,599.55-7,773.15

Finding the Fourth Proportional to 11,291.19, 15,599.55 and 7,773.15

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Solution

The fourth proportional to 11,291.19, 15,599.55 and 7,773.15 is: 10,739.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,291.19 : 15,599.55 = 7,773.15 : x
  2. Step 2: Convert to fraction form
    11,291.19/15,599.55 = 7,773.15/x
  3. Step 3: Cross multiply
    11,291.19x = 15,599.55 × 7,773.15
  4. Step 4: Simplify right side
    11,291.19x = 121,257,642.08
  5. Step 5: Solve for x
    x = 121,257,642.08/11,291.19
  6. Step 6: Final answer
    x = 10,739.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.